Table 1.

Interview schedule

Question	Probe questions
When we asked you in the questionnaire, ‘how much has your neck pain changed over the course of treatment’, what things did you consider when answering that question?	Can you tell me more about that? In what way? How so?
Why do you think your neck pain got better/worse?	Why do you think that is? Can you tell me more?
Do you think it is possible to reach 100 % improvement or complete recovery from your neck pain?	IF NOT…why do you think that is?
	Can you tell me more about that?